Q:Donkey hide gelatin cake made of sticky, forming very well, that is, vacuum packaging, after a little sticky in the vacuum bag, what's going on?

For custom vacuum bags, I would recommend a manufacturer who has customized experience in vacuum bags because it reduces your time cost and offers a lot of advice on packaging design and customization.

Q:How does the pulp solidify? What additives do you need? Curing agents? Or what do you need as binders?

Urea formaldehyde resinUre-aformaldehyde resinsUrea formaldehyde polymer. Also called urea formaldehyde resin. The cross-linking English abbreviation UF. molding, the product is insoluble and infusible thermosetting resin, urea formaldehyde resin cured phenolic resin than the color of light, translucent resistance, weak acid and weak alkali, good insulation properties, excellent wear resistance, low price but, in case of strong acid and strong alkali decomposition, weather resistance is poor. The name Beetle. urea and 37% formaldehyde aqueous solution can be obtained by the polycondensation of linear urea formaldehyde oligomer in catalytic acid or alkali industry, with alkali as catalyst, reaction temperature of about 95, the molar ratio of formaldehyde to urea as 1.2.0, to ensure that the resin curing reaction. The first step to generate and dimethylol urea, then hydroxymethyl amino and soluble resin by further condensation, if by acid catalysis, easy to cause the product to be stored to gel. In neutral condition. The linear UF resin for ammonium chloride Curing agent can be cured at room temperature. The molding powder at 130 to 160 DEG C heat curing accelerators such as zinc sulfate, trimethyl phosphate, two oxalic acid ethyl ester can accelerate the curing process. The urea formaldehyde resin is mainly used in the manufacture of molded plastic manufacturing, daily life products and appliance parts, also can be used as adhesive, paper and fabric sheet the pulp, plywood, decorative board and so on. Because of its light color and easy coloring, products often colorful and magnificent.

Q:What are the packaging machines that use temperature control watches?

Such as shrink machine, vertical packaging machine, pillow type packaging machine, continuous sealing machine,

Q:Calendering, extrusion, blow molding, pressing, plastic (vacuum forming) and what is the rotational molding

Plastic forming and processing methodPlastic molding is an engineering technology, involves the plastic into all kinds of plastic products in the process. The transformation process tends to happen in one or more of the following conditions, such as polymer rheology and physical and chemical properties of the change.

Q:What is the general packing cost of beer beverage packaging?

Beer beverage hot shrink packaging generally use PE heat shrinkable film, packaging temperature is usually in accordance with the film material and thickness to set,

Q:The role of packaging equipment in packaging equipment

Some products, such as food and drug packaging, according to the health law is not allowed to use manual packaging, because it will pollute the products and packaging machinery to avoid direct contact with the staff of food and medicine, to ensure the quality of health.(8) it can promote the development of related industriesPackaging machinery is a comprehensive science which is related to many subjects, materials, process and equipment, electronics, electrical appliances, automatic control and other related disciplines, requires the simultaneous and coordinated development, any discipline problems will affect the overall performance of packaging machinery. Therefore, the development of packaging machinery will effectively promote the progress of related disciplines. In addition, in order to meet the needs of high-speed packaging machinery packaging, the relevant front and rear processes are bound to adapt, and also promote the simultaneous development of related processes.

Q:A & B two sets of packaging machines, at the same time packaging quality of 500 kilograms of goods

(1) calculate the average of two samples;(2) the variance of two samples was calculated;(3) which packaging machine is more stable in packing quality?(1) according to the average, the number divided by the sum of each group;

Q:The difference between wrapping and bagging is explained from the packaging method, and the difference of the working principle of the packaging machine is analyzed

Wrapping machinery should have rolling, holding, brushing, packaging machinery, bagging, weighing, sealing.

Q:What is the design basis of automated packaging?! Just for today!

Greatly improve the degree of automation of process flowA few years ago, automation technology accounted for only 30% of the design of packaging machinery, now has accounted for more than 50%, a large number of micro computer design and mechanical and electrical integration control. To improve the packaging machinery automation, one is to increase productivity; the two is to improve the flexibility and agility equipment; three is to improve the ability of packaging machinery to complete the complex action, namely the manipulator to complete the packaging process. Such as chocolate packaging has been achieved, with mechanical hand instead of the original manual. Automatic design of packaging machinery has the following two main characteristics:

Q:Working principle of packing machine

In the first step, the wrapping paper is pulled down by a bag pulling motor, and then the paper part is supplied with paper according to the signal of the paper feeding sensor, and the wrapping paper is formed through the forming part of the shaper